Assig-nok to tjndkrwoob type



Jan. 17, 1928. 1,656,297

J. A. B SMITH TYPEWR ITING MACHINE Filed Oct. 16. 1923 Ame/7f r: aw/54 Afford Patented Jan. 17, 1928.

omm STATES PATENT OFFICE.

.Tns'sn'e. B. SMITH, "on STAMFORD, CONNECTICUT, AssieNon TO UNDERWOOD"TYPE- WRITER COMPANY, on NEW YORK, N. Y., A COREORAI'ION OF DELAWARE.

TYPEWRITING iimcHINE- Application filed October 16, 1923. Serial no. 668,821.

kind' lmown as continuous web 01' fan-iold machines, as set. forth in the atent to Wernery-&.jSmi-th, No. 1,132,055, .of March 16,-

1915, and-isan-improvement-on the patent to A. A;00111150111110.1,548,320 of August 4,

I 1925,. and onjmy 'pencli-ng application, Serial ,No. 664,844yfiled- Sptembe1'f26,' 1923.

" '"One"ofthe'principul objects of the present invention is to economize in carbonp'aper, and to reduce the time which is taken,

by. .replacinw worn-out carbon-sheets.

In generzi-l it is further the object oftheinvention. tosi nplify the op'e 'etion'oif such machines.

These *and other ob3ects and advantages are achieved by using carbon-sheets which are longer than the sheets heretofore required for one form, billorletter, to 'such an extent that the extralength of carbon-sheet provides. a. reserve be .utilizedei'ten the leading portion of the carbon-sheet has; be-

come woi nyand egihausted by use.- The -2 means jorJbi-inging a fresh portionof the-- Carbon-sheet by a simple and short1nm1i1f).11-

..-1zition-..ih't0 working-position foi'lns pert of this invention. v

According.- --to this --sheets, which areoi' sufiicient length to provide for two. for more forms 011 web Sections,

'ai'e'prefei'ably folded over nholdei blafde, so",

that the; normally inactive extra length or reserve portion; extends forwzu'd" over i the active 0'1: leadingportionto'wardthe platen in the .for'n'i of a loop at the rearof the platen, and then.- the iiolcleclfcarbon-sheet, is elein'pedzto' .the blade to be inserted between the' adjoini-n'g plies of the web.

40' When; thelehclng portion ofthe oai-bon sheet has become worn the extra. portion can be.rnaden'vuilable'by releasing the clamp which fastens the Icarbon-sheets'upon the holder -bla-de imdslowly pushing the ea hom.

holdef-trucktotheirehr to peyfout the loop. r v v :ing and clamping means taken-along seqtion This simple, and short operation effects seletive*shifting between the carbon-sheetand the carbon-holder, and thereby bnngs 'a normany inactix' .fr'eslh poitionfof the-carbon- 50. f ce into active working/position; The

lmeans for assuring the t t invention;- earbonclamp g purpose, locking and releasing f means are .60

provided which are opeifable from the out: slde of the web, without parting the web Provision is also madeforsimiiltaiieously releasmg.- ;and clamping 1 several carbon-[05' sheets orell of the sheets.

The extra length ofcarbon exhilable may give double or triple service iend' only a small. portion of. the original length lio f carbon is wasted.

It is also a. feature of the invention that the overlapping reach or excess part of the sheet,-. by egistration or alignment of the side edges thereof :Wlth the .side edges of the other reach of the sheet .may serve as .a 'm

he sheet is not atta'chedi to. theearrier in 'skewed conditiorh Other --features,and advantages will hereinafter appear. Y

In the. -aoeompenyingdrawings, Fignrelshotvs a sectional elevation of a. portionjofe eontiiiu'oi s'billingor fen-fold V ew riter embodyingtheiinvention. igui'e2. is a'diagremmatie view of a seeferred way v Fimre-Bis fa top viewnof the truk on which the euxbomholders are mounted,

howing a' plu rality of clamps .arrenged in Figure 4 is'the sa-ine as Figure. 3,, bu't shows the clarnpsfin the position to ii'elee'se; the carbon-sheets. l l Figure" 5 is a'fra ment of mpe'rspeetive 7 view ofthe carbonolder =;md. its bea,ring 95 shownas in the positon of Figure 3. Figure '6 is an enlarged detail of the hold:

1ine' fi-'6 in Figure, 3,-each holdm' hand means;f01ming-. ttn ,eesilyi' etech- Referring to f the din-wings, theife shown "'9. p'ortionfof a billing machine; for typing-h pluralityof i'continuons 'plies oftenfold.

position togl ip'the carbon' she ets. o 9o webs interleaved with carbon-sheets. A platen 10 is mounted on a platen-shaft 11, which is journaled on a platen-displacing frame 12. The laten 10 together with the frame 12 and a front )aper-table 1Q, mounted thereon, are swingi ble about the shaft 14, and-are held in lowered or typing position by latches 15. A rear paper-table 1G is fastened on a cross-bar 17 01 themachine, and passes under and around the platen 10 when the latter is in typewriting position. The paper-table 16 assists in feeding the composite work-piece around the platen 10.

A carbon-holder truck 18 is mounted in the rear of the machine on rails 19 to ride forward and backward. Gn one side of the is a handle 36 arranged withinrcach of the operator. By means of this handle 36 the truck 18' may be pulled toward, or pushed away from, the platen '10.

The above-described parts of the machine are like those of the well-known Underwood continuous billing typewriter, described in the above-mentioned patentto lVernery & Smith, No; 1,132,055.

In accordance with the present invention, there is preferably mounted longitudinally on each side of the truck.18 a stepped hearing block 20. Each step of the blocks in this instance has in stag ered relation holes 21 extending downward 'trom the upper side of each step to receive pins 22, which depend rigidly from the under face of a carbon-holder blade23, as shown in detail in Figure 6, for holding the blades 23 removably rigid in position on the blocks 20. On

each blade 23 there is pivoted at 25 aclamp 24. .The strip of metal which forms the clamp is so foldedor bent that it resilient-1y embraces the blade 23 along one side for gripping the carbon-sheets 83, as indicated in Figures 1, 2 and 4. One way of pivoting the clamp 24:. on the blade 23 is illustrated in detail in Figure 6, which shows that the pivot-pin 25. is secured in the bar 23. Each pivot: 25 may haven knurledhead 26 for assisting in the removal of the bar 23 from its pinned position on block20. When the blades and clamps forming units are being.

lifted from the blocks 20- the pins '22, provided on the under side of the bIades'23, slide out of: the holes'21. The clamps 2 1 may have suitable outwardly-extending arms 27 for swinging the same about the pivots 25. At the, outer side of each of the --bea.ring

blocks are'mounted upon the truck 18 for limited longitudinal to-and-tro movement upstanding flange-likegmembers or latches 28, the upper edges of which are also stepped correspondingly to the stepped bearing blocks 20. Each step of the flange 28 has an open slot or cutout 29- ,with which the outer end 27 of the clamp 2t engages when the carbon-holder is placed upon the correspondin step of the bearing block 20, inserting t 1e pins 22 of. the bar 23 into the holes 21 of this step. To provide for the limited longitudinal movement of the flange-like members, which hereafter are called latches 28, there are elongated holes or slots 31 arranged in the base-plates 30 of the latches 28. These slots receive the screws 0..., which are fastened on the truck 18; the heads of the screws holding the plates 30 slidably down on the truck. As the cutouts 29 of the latches 28 engage the outer ends 27 of the clamping bars 24, the shifting of the sliding latches 28 Will lock or unlock the clamping bars.

To facilitate the shifting of the locking and unlocking latches 28, afinger-piece 34 is provided on one of'the ends of each latch.

Figure 3 shows the latch 28 and the clamping bar 2st in locking position,-while Figure 4 shows the position at which the clamps are open and the carbon-sheets released on the bars 23, permitting shifting movement. of the carbon-sheetsrelatively-to the bar 23.

The improved operation is as follows: The

blades 23 are firstlitted from their pinned.

positions. Then the carbon-sheets 33 are each folded over and around a blade 23 and gripped in'position by its clamp 24. Proferably, as shown in Figure 2, the upper and lower folded'port-ions of the carbonsh'eets 33 have their carbonized surfaces face to face. The lower portion of carbon-sheet 33 is made of proper length to extend around the platen and have the leading edge thereof in position for immediate use in typing.

The upper port'ion of the carbon-sheet 33 is.

left shorter and serves as a; reserve supply. Placing the carbon-sheets 33, as explained, tends to avoid smudging of the adjacent overlying plies when the carbon-sheets are shifted bet-ween the plies of the webs 37 during the operation of they carbon-holder truck 18. The webs 37 are then-passed between the blocks 20 on the carbon-holder truck 18. 'The bars 23, with the carbonsh-eet-s attached, are next mounted on the bearing blocks 20 of the truck 18, between the plies off the webs 37, in the usual nlanner, see Figure 1. The leading edges of the webs 37, withthe interleaved carbon-sheets 33', are then threaded under the platen 10' llm 15 while the typing operation is proceeded with.

Whenthe leading portions of the transfer surface of the. carbon-sheets 33 become worn' 5 the drawings.

and'exhausted,anew reserve portion can be placed-in position by pushing the fingerpiece 34 to slide'thelatches 28 forward. This swings'the clamps 24 away from the bars 23 and'relea'ses the grip on the carbon-sheets 33, see Figure And while the platen is in its lowered position, gripping the web and interleaved carbons, the truck 18 is pushed rearwardly by means of the handle 36, thus efiectin a relative shift between the fingers and'car on-she'ets.

O'relsewvhile the platen 10 is inits lifted positiong-andthe leading ends of the carboninterleaved webs 37 are" held between the fingers, the carbonholder truck, supporting the bars 23','='may be slowly pushed rearwar air amount equ ivalent to :the exhausted portion' to-be're Iaced; These operations and movement'seau'se the portions of the carbonsheets foldediabout the blades 23 to slip beyond their "former clamped positions. Fresh portions of -the carbon-sheets in amount equivalent Ttoflthe leading worn and exhausted ortions"are'="thereby exposed for use.

. The latches 28 arethen restored to the lookcarbon-sheets 33, arethen gaged andsevered by means of the usual knife and gage (not shown). These latter are mounted on the front paper-table 13. The following sections of' the webs 37 are now readyfor typing, and are interleaved with unused portions of the carbon-sheets The above operati'on is repeated each time when it is necessary to replace the worn porti'ons'of the carbon-sheetsp It is eviden t'that not-only will-the disclosed improvement result in a savin *of carbon-sheets, but also will greatly iii 'to simplifythe billing op oration as'a whole. It will further save time,-since the carbon-sheets-need not be re 'placed as frequently as when no reserve means is provided. The improved simple clamping feature permits loosening of the carbon-sheets from the outside of the fold of the webs. This allows the reserve portions "of the carbon-sheetsto be easily and quickly positioned for replacing worn and exhausted portions!- It will be understood that the invention is not restricted to the embodiment shown in WVhile these holding and clamping units are shown in'the drawings (two on the right handand' one on the left hand" side of the i trutk) this number and arrangement may to vary according to requirements, for instance two holders may be mounted on the lefthand side instead of one.

When single superposed websinstead of fan-folded webs are tozbe used, it may be more convenient to arrange'all of the holders on one side, particularly "if only a small number of carbon or ink sheets is to be used.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine for writing on superposed Webs or longitudinal folds of webs and interleaved carbon or ink sheets, the combination with a roller platen, the grip of which on the combined web and carbon-sheets is releasable, of displaoeable means forholding carbon or ink sheets of greater length than required for one form or web section, and clamping means for securing a sheet on the holder and gripping thesheet along a line intermediate both ends ofthe sheet, said clamping means being op-- erable from the outside .while remaining between the webs to allow of releasing the grip for shifting the holder relatively to the sheet and to lock the sheet on the holder in the new working position.

2. In a typewriting machine for writin on superposed webs or longitudinal folds o webs and interleaved carbon or ink sheets, the combination with a rollerplaten, the grip of which on the combined web and carbonsheet is releasable, ofv means forholding carbon or ink sheets of multiple-form length, and clamping means for securing a sheet on the holder-and gripping thesheet along a line intermediate both ends of the sheet, said clamping means being operable from the outside to release the grip thereby permitting relative shifting between the holder and the interleaved carbon-sheet, andv to grip} the sheet on the holder in the new Working position, said holding and-.clamping means forming units detachably mounted on the sides of the truck carrying the carbonholders.

3. In a typewriting machine; for writin on continuously-fed webs or vlongitudina folds of webs having interleaved carbon or ink sheets, the combination-With a displaceablc roller platen, of a holder adapted to hold a carbon or ink sheetof a-length suiiicient for two or more'fonms in such folded condition that the front end of the sheet is ready for use. between the end sections of the web, while the remaining'part. ofthe carbon is folded over the holder; towards the platen to be kept in reserve, a clamping means on the. holder-to grip the sheet on the latter, andexternal releasing .means to release the grip of saidclamping means on the holder toallow shifting of the holder relatively to the carbon-sheet for placing an unused portion of the carbon-sheet into working position.

4.111 a .typewriting machine for writing on superposed webs or longitudinal folds of webs having. interleaved carbon or ink till sheets, the combination with a liftable roller platen over which the web witli'the carbonsheets is fed, of displaceable carbon-sheet holders, each comprising a bar over which the carbon-sheet is folded, and a clamp pivoted near the outer end of said bar to grip the folded sheet on a line intermediate both ends of the sheet, and means for releasing the clamp and looking it again from the outside, said means comprising an outward extension of the clamp and in engagement with the latter, a to-and-fro movable slide.

5. In a typewriting machine for writing on superposedwebs or longitudinal folds of webs having interleaved carbon or ink sheets, the combination with a to-and-fro movable carriage which is slidable on longi tudinal rails'in-the rear of the roller platen, of holder-bars for the carbon-sheets, extend-- ing inwardly from lateral bearings on the carriage and comprising means for detachably mounting said holder-bars with one end on said lateral bearings of the carriage, and means for clamping a carbon or ink sheet on each holder-bar along a line intermediate its two ends, and means for releasing the clamping grip from the outside, comprising an out ward extension of the clamping member and in engagement therewith a to-and-fro movable slide or latch mounted on the side of the carriage.

6. In a typewriting machine for writing on superposed webs or longitudinal folds of webs havinginterleaved carbon or ink sheets, the combination with a to-and-fro slidable truck which is mounted in the rear of the roller platen, of inwardly-extending holderblades for the carbon or ink sheets, said holder-blades being detachably mounted with the outer ends on lateral bearings on the truck, means on the holder-blades for clamping a carbon or ink sheet on each holder-blade along a line intermediate its two ends, and means for releasing the clamping grip from the outside, comprising an out- Wardly-extending arm of the clamping member and, in engagement therewith a toand-fro movable slide or latch mounted on the side of the truck, the slide or latch being in engagement with all the clamping members of all of the holder-blades which are mounted on one side of the truck.

7. In a continuous web typewriting machine for typing on a plurality of superposed-plies of fan-fold webs having successive detachable forms thereon, a platen, a carbon-sheet-holding means atthe rear of the platen, comprising a plurality of transverse holders reciprocatingly mounted to extend between the plies, carbon-sheets fastened, part way of their lengths, to said holders, one end of each portion of the carbon-sheets being left long enough so that the leading edge thereof may be used in typing said forms until exhausted, the remaining portions providing areserve within the machine to replace-those exhausted, and means operable from the outside of the web to simultaneously release the carbon sheets from all of the holders so that there'- placement of the exhausted portions may be quickly effected from said reserve.

8. A carbon-sheet holding device consist ing of a blade about which a carbon'sheet is folded, a clamp for gripping the sheet to the blade pivotally mounted at one end thereof, and an arm forming part of said clamp extending beyond the pivotal mounting to pro .vide means to-swing the clamp to grip-or release the carbon-sheet.

9. A carbon-sheet hOldlIlg device consist ing of afblade about which a carbon-sheet is folded, a clamp for grippingthe sheet to the blade pivotally mounted at one end thereof, an arm forming part of said clampextending beyond the pivotal mounting to provide means to swing the clamp to grip' -or' release the carbon-sheet, a bearing block to which the blade is detachably mounted adjacent the pivotal connection, and means for engaging the arm to control the movementfofthe clamp. v

10. In a continuous billing typewriting machine for typing a plurality of superposed plies of fan-fold webs having successive detachable forms thereon and interleaved thereof and adjacent the mounting of the blades to the steps'of the bearing blocks,

and an armforming part of each clamp ex-' tending beyond the pivoting point and out side the folds of the-Webs by-means of which the clamp is swung to grip or release thecarbon-sheets.

11. In a continuous web typewriting machine for typing a plurality of superposed plies of webs having successivedetachable forms thereon and interleaved with'carbonsheets, a platen, carbonsheet-holding means at the rear of the platen, said means con sisting of a movable carriage, Stepped hear ing blocks mounted longitudinally on the carriage near thesides thereof, blades about which the carbon-sheets are folded, detachably mounted to the steps of; the bearing blocks and extending between said plies and arranged to reciprocate with the carriage, clamps for gripping the carbon-sheets. to the blades pivoted at one endthereof and adjacent the mounting of the blades to the steps of the bearing blocks, an arm forming part of each clamp extending beyond the pivoting point outside the folds of the web by means of which the clamp is swung to grip or release the carbon-sheets, and a single means on the carriage engaging all of said arms to control the movement ot' the clamps.

12. In a continuous web typewriting machine for typing on a plurality of superposed plies of web having successive detachable forms thereon, a platen. earbon-sheetholding blades at the rear of the platen rcciprocatingly carried mounted upon a stepped series of mounts so as to extend be tween the plies, carbon-sheet-clamping means associated with each blade, each blade having a carbon-sheet folded part way of its length around the blade and gripped thereto by said clamping means, one portion of each sheet being in use and the remaining portion providing a reserve Within the ma chine, means for simultaneously releasing a plurality of said clampingmeans to .i'ree the carbon-sheets from the blades, said blades being interchangeable upon any of the mounts, said releasing m ans being brought into operative relation with said blades upon the act of attaching them to their mounts, and manually-operable means for effecting a relative shift between each blade and associated carbon-sheet to substitute a reserve portion for the used portion Without removal of the carbon-holding blades from between the plies of the web.

13. A carbon-sheet holder for use in type- Writing machines, including a clamp for securing a carbon-sheet between two plies of material, and means at the exterior of said plies operatively connected to said clamp for releasing the carbon-sheet.

14. In a typewriting machine for writing on successive detachable forms of a web, a blade for engaging the intermediate portion of a carbon-sheet interleaved between adjacent plies of the web, a. clamp for securely holding the carbon-sheet to the blade, means at the exterior of the web operatively connected to said clamp for releasing the carbon-sheet from said blade after the leading form has been typed, and means for slipping the blade beyond said first-mentioned carbon-holding position to make available an unused carbon portion, the leading used ortion being removed together with the detachable typed form.

15. A carbon-retracting device for use in a typewriting machine for writing on successive detachable forms of a fan-fold web with a carbon-sheet, partially folded upon itself and providing a leading exposed portion. interleaved between adjacent plies of the web, including removable carbon-holding blades, each engaging the bight of a carbonshcet, said blades being supported upon a stepped series of mounts on said carbon-retracting device and carrying clamps for ltolding the sheets onto the blades, means for simultaneously releasing the clamps, said clamps each including an arm extending to the outside of: the web-plies, the blades and their clamps being ii'iterchangeable to any of the mounts, said releasing means he brought into operative relation with the clamp-arms upon the act of attaching the blades to any of said mounts, and manually-controlled means for operating the care boa-retracting device to effect a relative shift between the blades and the released carbon-sheets.

'16. A carbon-retracting device for use in a typewriting machine for writing on successive detachable forms of a fan-fold web with a carbon-sheet, partially folded upon itself and providing a leading exposed portion, interleaved between adjacent plies of the web, including removable carbon-holding blades, each engaging the bightof a carbon-sheet, said blades being supported upon a stepped series of mounts on said caJbOYl-I'Qtl'flfiting device and carrying clamps for holding the sheets onto the blades, means for simultaneously releasing the clamps, said clamps each including an arm extending to the outside of the webplies, the blades and their clamps being interchangeable to any of the mounts, said releasing means being brought into operative relation with the clamp-arms upon the act of attaching the blades to any of said mounts, said releasing means being in the form of slides at opposite sides of the web, each slide having a series of notches into which the free ends of the clamp-arms are --received, and manually-controlled means for operating the carbon-retracting device to effect a relative shift between the blades and the released carbon-sheets JESSE A. B. SMITH. 

